如何从我自己的应用程序中打开 iPhone 设置？ [复制]

Question

如果用户已经登录，我想在 getinfo() 函数中从我的应用程序中打开 iphone 官方设置，如果没有用户登录，则无需打开 iphone 的官方设置应用程序打开官方设置iphone 目前我无法打开 iphone 设置。

 - (IBAction)twitterLogin:(id)sender {

        [self getInfo];

    }

        - (void) getInfo
        {
            // Request access to the Twitter accounts

            ACAccountStore *accountStore = [[ACAccountStore alloc] init];
            ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];

            [accountStore requestAccessToAccountsWithType:accountType options:nil completion:^(BOOL granted, NSError *error){
                if (granted) {
                    GET_DEFAULTS
                    [defaults setInteger:1 forKey:kHasUserRemembered];
                    [defaults synchronize];
                     NSArray *accounts = [accountStore accountsWithAccountType:accountType];

                    ACAccount *twitterAccount = [accounts objectAtIndex:0];
                    GET_DBHANDLER
                    NSDictionary *tempDict = [[NSMutableDictionary alloc] initWithDictionary:
                                              [twitterAccount dictionaryWithValuesForKeys:[NSArray arrayWithObject:@"properties"]]];
                    NSString *tempUserID = [[tempDict objectForKey:@"properties"] objectForKey:@"user_id"];

                    NSLog(@"userid: %@", tempUserID);
                    userDC *user =  [dbHandler authenticate_User:twitterAccount.username andPassword: @"" andIsFB:0 AndIsTwitter:1];
                    [defaults setObject:tempUserID forKey:kHastwitterID];
                    [defaults synchronize];
                    [self gotoMainView];






                                   }
               else {


                 [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General"]];

                    NSLog(@"No access granted");
                }
            }];

        }

Answer 1

正如对同一主题的几个 SO 问题的回答中所述：

• Opening the Settings app from another app
• Programmatically opening the settings app (iPhone)
• is it possible to open Settings App using openURL?
• How can I open the Settings app when the user presses a button?
• Launch Settings from app?
• Open the Settings app?

此功能在 iOS 5.0.x 中短暂可用：

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs://"]];

但此后已被删除，不再可能。